Iowa in June is gorgeous. I don't think I've seen many places prettier than Iowa in June.
I also remember some t-shirts that the U of I had when I was there and I keep kicking myself for not buying one. From left to right there were labeled cartoon-like drawings of corn, cows, the hospital, the river, the pentacrest, cows and corn. I loved that t-shirt.
Let them tease and gripe. They don't know what they're missing!